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Universitat Autonoma de Barcelona


Inequality in agri-food chains: the Global South produces the food, but the Global North keeps the wealth

A study by ICTA-UAB reveals that non-agricultural sectors absorbed most of the value added in global agri-food systems between 1995 and 2020. The Global South increased its share of agricultural production, but countries of the North still capture a disproportionate share of income from higher-value sectors.

SourceUniversitat Autonoma de Barcelona·JournalGlobal Food Security·TypeData/statistical analysis·DateSep 26, 2025

Extreme temperatures alter species reproduction

Two studies published by the Universitat Autonoma de Barcelona team reveal how extreme temperatures impact the reproductive process in reptiles and fish. The research found that changes in temperature can increase DNA fragmentation and alter chromosomal structures, leading to increased genetic diversity and adaptation to climate change.

SourceUniversitat Autonoma de Barcelona·JournalPLOS Genetics·TypeExperimental study·DateSep 4, 2025

Researchers describe for the first time brain signals associated with forgetting unpleasant memories in humans

The study used Representational Similarity Analysis (RSA) to investigate the neural representations involved in forming and extinguishing associative memories. Researchers found an increase in theta activity in the amygdala when unpleasant stimuli were presented during extinction learning, suggesting a safety signal.

SourceUniversitat Autonoma de Barcelona·JournalNature Human Behaviour·TypeExperimental study·DateSep 3, 2025

Ocean oxygen decline threatens deep-sea fish populations and ocean health, new study warns

A new study reveals that a decline in ocean oxygen levels is disrupting mesopelagic fish populations and ecosystems. The findings suggest that these events could destabilize ecological balances, impair the ocean's role in carbon cycling, and threaten marine biodiversity and food security.

SourceUniversitat Autonoma de Barcelona·JournalCommunications Earth & Environment·TypeExperimental study·DateJul 31, 2025

Barcelona could suffer heat waves up to 6ºC more intense by the end of the century

A study predicts that Barcelona will experience extreme and dry heat periods with temperature increases of up to 4ºC and a general reduction in relative humidity. The research forecasts an increase in average maximum temperatures of 4ºC and average minimum temperatures of 3.5ºC if greenhouse gas emissions are not drastically reduced.

SourceUniversitat Autonoma de Barcelona·JournalJournal of Geophysical Research Atmospheres·TypeData/statistical analysis·DateJul 17, 2025

Oldest whale bone tools discovered

Researchers have uncovered evidence of humans using whale bones as tools from 20,000 years ago, shedding light on the marine ecology of the time and the role whales played in past ecosystems. The study identifies five species of large whales used by early humans.

SourceUniversitat Autonoma de Barcelona·JournalNature Communications·TypeExperimental study·DateMay 27, 2025

Just 100 corporations behind a fifth of global extractive conflicts, study reveals

A recent study reveals that just 100 corporations are behind a fifth of global extractive conflicts, exacerbating environmental and social harms in the Global South. The companies, mainly from the Global North, engage in high-value resource extraction and transport, concentrating wealth while transferring harms to local populations.

SourceUniversitat Autonoma de Barcelona·JournalGlobal Environmental Change·TypeData/statistical analysis·DateMay 20, 2025

The "mega-village" of Valencina de la Concepción, a large sustainable and egalitarian community at the height of the Copper Age

A research team from Universitat Autonoma de Barcelona has analysed macrolithic tools from Valencina de la Concepción site, revealing a high level of economic sustainability based on cooperation and diversification. The community, occupied for a thousand years, had a diverse economy and maintained stability throughout the Copper Age.

SourceUniversitat Autonoma de Barcelona·JournalJournal of Archaeological Science·TypeObservational study·DateApr 7, 2025

Gene therapy reverses symptoms of rare neurological disease in animal models

A recent study demonstrates gene therapy's potential to restore motor capacity in an ultra-rare disease, Megalencephalic Leukoencephalopathy with Subcortical Cysts (MLC), even after symptom onset. The treatment restored normal protein activity, normalizing physiological brain alterations and reversing motor impairments in treated mice.

SourceUniversitat Autonoma de Barcelona·JournalMolecular Therapy·TypeExperimental study·DateMar 31, 2025

New light-induced polymer material formation method to improve 3D printing resolution

Researchers have developed a new photopolymerisation reaction controlled by two different colours of light, enabling the creation of solid polymeric materials with resolutions below millimetres. This method allows for precise spatiotemporal control and could improve the performance of 3D printing processes.

SourceUniversitat Autonoma de Barcelona·JournalAdvanced Functional Materials·TypeExperimental study·DateMar 26, 2025

Genetic risk of schizophrenia affects men and women differently

Research highlights differences in genetic risk of schizophrenia between men and women, with men showing a specific association with positive schizotypy traits. The study suggests that environmental factors may modulate the expression of genetic risk differently in men and women.

SourceUniversitat Autonoma de Barcelona·JournalProgress in Neuro-Psychopharmacology and Biological Psychiatry·TypeRandomized controlled/clinical trial·DateFeb 26, 2025

94% of the grey matter in the brains of mothers undergoes changes during pregnancy

A study analyzing the brains of women during pregnancy for the first time reveals that 94% of grey matter undergoes changes, particularly in social cognition regions. The research shows a reduction and partial recovery of brain volume, associated with steroid hormone fluctuations and maternal well-being.

SourceUniversitat Autonoma de Barcelona·JournalNature Communications·TypeObservational study·DateJan 17, 2025

Olive, grape, garlic, rosemary and saffron have properties against cardiovascular diseases

A review of the mechanisms of action and clinical evidence of bioactive compounds from Mediterranean diet constituents shows promise in treating atherosclerosis and reducing heart attack risk. The study identifies potential knowledge gaps and recommends designing preclinical and clinical studies to evaluate these natural extracts.

SourceUniversitat Autonoma de Barcelona·JournalFood Bioscience·TypeLiterature review·DateDec 12, 2024

UAB researchers cure liver disease MASH by a one-time gene therapy

Researchers from UAB have developed a gene therapy that reverses metabolic dysfunction-associated steatohepatitis (MASH) in mice, and most obese and type 2 diabetic patients could benefit from this treatment. The therapy, based on the fibroblast growth factor 21 protein, mediates long-term reversal of liver fibrosis and MASH.

SourceUniversitat Autonoma de Barcelona·JournalMolecular Therapy·TypeExperimental study·DateNov 13, 2024

Temperature at Roque de los Muchachos Observatory rose 1.1 ºC in 20 years, twice as much as predicted by climate models

Researchers at Universitat Autonoma de Barcelona found a 1.1 ºC temperature increase in the Roque de los Muchachos Observatory over 20 years, more than double predicted by climate models. The study also revealed an increase in diurnal temperature range and seasonal oscillations.

SourceUniversitat Autonoma de Barcelona·JournalMonthly Notices of the Royal Astronomical Society·TypeObservational study·DateOct 31, 2024